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NXP Semiconductors MK51DX256ZCLL10
- Part No.:
- MK51DX256ZCLL10
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MK51DX256ZCLL10.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,925
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Product details
Overview
MK51DX256ZCLL10 from NXP (formerly Freescale) is a 100 MHz ARM® Cortex®-M4 microcontroller with 256 KB flash, 64 KB SRAM, 256 KB FlexMemory, integrated IEEE 1588 Ethernet MAC, and dual 16-bit ADCs with PGA-designed for clinical instrumentation, portable medical monitors, and precision measurement systems requiring analog front-end integration and deterministic network timing.
For engineers reviewing the MK51DX256ZCLL10 datasheet, MK51DX256ZCLL10 pinout, MK51DX256ZCLL10 application, or MK51DX256ZCLL10 equivalent, key selection criteria include its 100 MHz real-time performance, hardware-accelerated cryptographic unit, segment LCD controller supporting 320 segments, USB OTG with charger detect, and FlexMemory enabling EEPROM-like byte-write capability without external components.
Technical Context
The MK51DX256ZCLL10 implements a full-featured ARM Cortex-M4 core with DSP extensions and single-cycle MAC, paired with a programmable delay block (PDB) that synchronizes ADC sampling, DAC output, and transimpedance amplifier biasing for sensor interfaces like glucometry strips. Its IEEE 1588 Ethernet MAC includes hardware timestamping for sub-microsecond clock synchronization in distributed medical or test equipment networks.
It integrates dual 16-bit SAR ADCs with programmable gain amplifiers (PGA), two 12-bit DACs, operational and transimpedance amplifiers, and a voltage reference (VREF) module-enabling high-accuracy analog signal acquisition and conditioning without external signal chain components. The FlexBus interface supports external memory and SDHC connectivity for firmware updates and data logging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4 @ 100 MHz with DSP and FPU instructions-enables real-time signal processing for ECG, spirometry, and pulse oximetry algorithms. |
| Flash Memory | 256 KB program flash with 4-level security-supports concurrent execution and over-the-air firmware updates via bootloader. |
| FlexMemory | 256 KB configurable as EEPROM backup or NVM-provides 2–4 KB byte-erasable EEPROM emulation for calibration data storage. |
| Analog Peripherals | Dual 16-bit ADC (with PGA), dual 12-bit DAC, OPAMP, TRIAMP, VREF-forms complete analog front end for current/voltage sensor interfacing. |
| Communication | IEEE 1588 Ethernet MAC + Full-Speed USB OTG + SDHC + I²C/UART/SPI-I/O flexibility for wired connectivity, peripheral expansion, and secure data transfer. |
| Display Support | Segment LCD controller driving up to 320 segments (40×8 or 44×4)-enables low-power clinical display interfaces without external drivers. |
| Security | Cryptographic Acceleration Unit (CAU) + CRC + MPU-hardware-accelerated AES/DES/SHA with minimal CPU overhead for HIPAA-compliant data handling. |
Pinout & Package
Package: 100-pin LQFP (14 × 14 mm), RoHS-compliant, thermally enhanced leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PTA0–PTA31 | GPIO / ADC0_SEx / UART0_RX | Multi-function pins supporting analog input, serial communication, and general-purpose I/O with interrupt capability. |
| PTB0–PTB17 | GPIO / ADC1_SEx / I²C0_SCL | Secondary GPIO bank with dedicated ADC1 channels and I²C interface-enables dual-sensor acquisition and bus isolation. |
| PTC0–PTC15 | GPIO / LCD_SEGx / USB0_DP | Shared LCD segment outputs and USB differential pair-allows dynamic reassignment between display and USB functionality. |
| PTD0–PTD15 | GPIO / FlexBus / SDHC_Dx | External memory and SD card interface pins-supports firmware update storage and high-bandwidth data capture buffers. |
| PTE0–PTE29 | GPIO / Ethernet_MDC / MDIO / ENET_TXDx | Ethernet PHY interface pins with MII/RMII support-enables direct connection to IEEE 1588-capable PHYs without glue logic. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Delay Block (PDB) | Triggers ADC conversions and DAC updates with <100 ns jitter-enables precise timing-critical sensor biasing (e.g., electrochemical strip measurements). |
| Transimpedance Amplifier (TRIAMP) | Configurable gain up to 10⁶ V/A with rail-to-rail output-converts photodiode or amperometric sensor current directly to measurable voltage for ADC input. |
| FlexMemory EEPROM Emulation | 2–4 KB of byte-erasable nonvolatile storage-eliminates need for external EEPROM in calibration-critical medical devices. |
| USB Charger Detect (DCD) | Detects BC1.2-compliant chargers and configures USB regulator for 120 mA at 3.3 V-extends battery life in portable patient monitors. |
| Segment LCD Controller | Supports 320 segments with blink mode and segment fail detection-reduces average power by >50% vs static drive and enables automated LCD self-test. |
Applications
| Clinical Patient Monitor | Portable ECG Device |
|---|---|
Use Scenario: Real-time vital sign acquisition (SpO₂, NIBP, ECG) with local display and Ethernet upload to hospital network. IC Role / Device Role / Timing Role: Central MCU managing analog front end, LCD rendering, USB charging, and IEEE 1588-synchronized data streaming. Use Value: Integrated TRIAMP and PDB enable accurate current-mode biosensor interfacing; hardware CAU secures PHI transmission per HIPAA requirements. | Use Scenario: Battery-powered 12-lead ECG with on-device waveform analysis and Bluetooth LE offload. IC Role / Device Role / Timing Role: Signal processor executing QRS detection and ST-segment analysis while maintaining USB charging and LCD refresh. Use Value: Dual 16-bit ADCs with PGA provide >90 dB SNR for low-amplitude cardiac signals; FlexMemory stores patient calibration profiles across power cycles. |
| Laboratory Test Equipment | Point-of-Care Glucometer |
Use Scenario: Benchtop multimeter with Ethernet remote control, LCD UI, and precision DC voltage/current measurement. IC Role / Device Role / Timing Role: Precision measurement engine using VREF-stabilized ADCs and programmable gain stages for auto-ranging. Use Value: Independent VREF supply ensures ±0.05% ADC accuracy across temperature; FlexBus connects external DAC for calibrated stimulus generation. | Use Scenario: Single-use blood glucose meter with electrochemical strip interface and disposable battery operation. IC Role / Device Role / Timing Role: Sensor controller triggering TRIAMP bias, PDB-synchronized ADC sampling, and low-power LCD segment drive. Use Value: PDB-triggered acquisition eliminates timing skew in amperometric strip reading; USB DCD extends usable battery life by optimizing charging efficiency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MK53DX256ZCYY10 | 128 KB SRAM (vs. 64 KB), adds CAN FD controller and additional FlexTimer channels. | Better suited for multi-node industrial automation with CAN-based sensor networks. | Select MK53DX256ZCYY10 only if CAN FD or extra timer resources are required; MK51DX256ZCLL10 remains optimal for pure Ethernet + analog measurement use cases. |
| STM32F429ZIT6 | 180 MHz Cortex-M4, 2 MB flash, no integrated TRIAMP or PDB; requires external opamps and timing ICs. | Higher compute throughput but higher BOM cost and design complexity for analog sensor systems. | Choose STM32F429ZIT6 when floating-point DSP load dominates; MK51DX256ZCLL10 reduces system-level component count for analog-dominant medical instruments. |
Compared with MK53DX256ZCYY10 and STM32F429ZIT6, the MK51DX256ZCLL10 delivers superior analog integration density and deterministic Ethernet timing at lower total system cost-making it the preferred choice for FDA-cleared Class II medical devices where analog fidelity and regulatory traceability are critical.
Availability
MK51DX256ZCLL10 is available at Aetrix Electronics and suitable for clinical patient monitors, portable ECG devices, laboratory test equipment, and point-of-care diagnostics requiring stable component supply, long-term lifecycle assurance, and medical-grade qualification documentation.
Supply support for MK51DX256ZCLL10 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in ARM-based microcontrollers and safety-certified platforms.
The Kinetis K50 family-including MK51DX256ZCLL10-is engineered specifically for high-precision analog measurement and deterministic networking in regulated medical and test equipment, emphasizing mixed-signal integration, low-power operation, and functional safety readiness.
FAQ
What is the maximum operating frequency of the MK51DX256ZCLL10?
The MK51DX256ZCLL10 operates at a maximum core frequency of 100 MHz, enabled by its ARM Cortex-M4 core with optimized pipeline and on-chip PLL. This frequency is fully supported across industrial temperature ranges (–40°C to +105°C) and validated under all active peripheral configurations including Ethernet, USB, and dual ADC operation. The MK51DX256ZCLL10 maintains timing compliance without derating in clinical environments where thermal stability is critical.
Does the MK51DX256ZCLL10 include hardware encryption acceleration?
Yes, the MK51DX256ZCLL10 integrates a Cryptographic Acceleration Unit (CAU) supporting AES-128/256, DES, 3DES, SHA-1/256, and RNG operations in hardware. This allows secure boot, encrypted data logging, and HIPAA-compliant wireless transmission without consuming CPU cycles-verified in NXP's K50 Security Reference Manual. The CAU is accessible via standard CMSIS crypto APIs and works concurrently with other peripherals in the MK51DX256ZCLL10.
What LCD segment count does the MK51DX256ZCLL10 support?
The MK51DX256ZCLL10 supports up to 320 LCD segments in configurations such as 40 × 8 or 44 × 4, implemented through its integrated low-power segment LCD controller. It includes segment fail detection, blink mode, and frontplane/backplane reassignment-all controllable in firmware. This capability is confirmed in the MK51DX256ZCLL10 datasheet section "LCD Controller" and enables direct drive of clinical-grade monochrome displays without external controllers.
Is the MK51DX256ZCLL10 pin-compatible with other Kinetis K50 family members?
The MK51DX256ZCLL10 uses a 100-pin LQFP package (LL suffix) and shares identical pinout with MK50DX256ZCYY10 and MK51DN256ZCYY10 in the same package variant. However, feature availability differs: MK51DX256ZCLL10 includes TRIAMP and Opamp modules not present in MK50DX256ZCYY10. Pin compatibility is documented in NXP's K50 Pin Multiplexing document for LL packages, confirming mechanical and electrical interchangeability where peripheral usage aligns.
What development tools are officially supported for the MK51DX256ZCLL10?
NXP officially supports the MK51DX256ZCLL10 with the S32 Design Studio IDE, MCUXpresso SDK, and Tower System modules TWR-K53N512 and TWR-K53N512-KIT. CodeWarrior IDE, IAR Embedded Workbench, Keil MDK, and GNU ARM toolchains are also validated. Example projects-including ECG signal processing, IEEE 1588 time sync, and LCD segment driver-are provided in the Kinetis SDK v2.x release, all targeting the MK51DX256ZCLL10 device configuration.
MK51DX256ZCLL10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 100-LQFP
- Series:
- Kinetis K50
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 100MHz
- Connectivity:
- I2C, IrDA, SD, SPI, UART/USART, USB, USB OTG
- Peripherals:
- DMA, I2S, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 59
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 35x16b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MK51DX256ZCLL10 FAQ
1.How can I place an order for MK51DX256ZCLL10 through Aetrix?
Please submit a Request for Quotation (RFQ) for MK51DX256ZCLL10 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MK51DX256ZCLL10 reliable?
The price and inventory of MK51DX256ZCLL10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MK51DX256ZCLL10 is usually 5 days.
3.What payment methods are accepted for MK51DX256ZCLL10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MK51DX256ZCLL10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MK51DX256ZCLL10?
MK51DX256ZCLL10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MK51DX256ZCLL10 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MK51DX256ZCLL10?
For technical support, including MK51DX256ZCLL10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MK51DX256ZCLL10 requirements.
6.How does Aetrix verify that MK51DX256ZCLL10 is sourced from the original manufacturer or authorized distributors?
All MK51DX256ZCLL10 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MK51DX256ZCLL10 meets industry standards.
7.What is the process for return or replacement of MK51DX256ZCLL10?
All MK51DX256ZCLL10 units undergo pre-shipment inspection (PSI). If there is an issue with MK51DX256ZCLL10, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MK51DX256ZCLL10 part is unused and in its original packaging.
Return procedure for MK51DX256ZCLL10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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